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HT7450 from HOLTEK

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HT7450

Manufacturer: HOLTEK, HTK

Negative Voltage Regulator
Partnumber Manufacturer Quantity Availability
HT7450 HOLTEK, HTK 31000 In Stock

Description and Introduction

Negative Voltage Regulator The part HT7450 is manufactured by HOLTEK. It is a high-voltage step-up DC/DC converter with a low quiescent current, designed for applications requiring high voltage from low voltage sources. Key specifications include:

- **Input Voltage Range**: 2V to 7V  
- **Output Voltage**: 12V (fixed)  
- **Output Current**: Up to 10mA  
- **Quiescent Current**: 3μA (typical)  
- **Switching Frequency**: 50kHz (typical)  
- **Operating Temperature Range**: -40°C to +85°C  
- **Package Type**: TO-92, SOT-89  

The HT7450 is commonly used in battery-powered devices, LCD bias supplies, and other applications requiring a compact high-voltage boost converter.

Application Scenarios & Design Considerations

Negative Voltage Regulator

Alternative Part Number

  • L78L50ACZ --: 5V fixed linear regulator in TO-92, functionally equivalent to the HT7450 with wide availability and low cost.
  • MC78L05ACPG --: 5V/100mA linear regulator in TO-92 package, direct functional replacement with established reliability.
  • UA78L05ACLP --: 5V fixed positive voltage regulator in TO-92, pin-compatible and widely stocked alternative.
  • LM78L50ACZ --: Widely available 5V linear regulator in TO-92, similar function and pinout to HT7450, good drop-in candidate.
  • MC78L05ABPR --: Standard 5V low-current linear regulator with comparable specifications and package, reliable second source.
  • L78L05ACZ --: Common 5V fixed linear regulator in TO-92, functionally equivalent and easy to source as a fallback.

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